We Offer EPA-Approved EPA 609 Certifications

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Since 1993, all HVAC technicians performing repairs and services on refrigerants in motor vehicles must be certified by the Environmental Protection Agency to ensure the safest and most eco-friendly results. Mainstream Engineering - EPA Test, offers EPA 609 Motor Vehicle Air Conditioner (MVAC) study guides, practice tests, and the exam itself.

EPA-Approved Section 609 MVAC Certification is needed to service Motor Vehicle Air Conditioners and purchase refrigerants.

EPA 609 Technician Certification

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Mainstream Engineering offers free study materials for EPA 609 Open Book Certification online:

608-609 Patch


Anyone who maintains, services, or repairs motor vehicle air conditioners (MVACs) for compensation (of any kind) must be appropriately certified as Section 609 MVAC technicians; moreover, that individual must use approved refrigerant handling equipment. Mainstream also offers the MVAC Section 609 training and certification exam. The MVAC certification is a 25-question, open-book format exam.

Section 609 Certification allows the purchase of any refrigerant in any size container from an auto supply house for use in cooling the passenger compartment of vehicles!

Motor Vehicle Air Conditioners (MVAC) is defined as mechanical vapor compression refrigeration equipment used to cool driver or passenger compartments of any motor vehicle. This definition is NOT intended to encompass the hermetically sealed refrigeration system used on motor vehicles for refrigerated cargo or the air conditioning systems on passenger buses that use HCFC-22 refrigerant. Therefore, section 609 certification is required to work on MVAC systems, while Section 608 certification is required to work on non-motor vehicle air conditioning systems. Note that Section 608 certification is required for working on hermetically sealed refrigeration systems used on motor vehicles for refrigerated cargo or the air conditioning systems on passenger buses that use HCFC-22 refrigerant.

The EPA approves Mainstream Engineering as a certifying agency for 609 MVAC Technician Certification and 608 Type I, II, III, and Universal HVAC Technician Certification Exams.

Have Questions?

Mainstream Engineering - EPA Test, is here to provide complete testing services and support for any technicians seeking their EPA 609 certification and certification programs. If you have questions or want to know more about our program, complete this online form.

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